If you have a PC with an HDMI port and a reasonable graphics card, it shouldn't be too much of a problem, but there might be a limit on the screen size that your graphics card can support, so it may be worth a bit of googling first. If your PC doesn't have an HDMI port, go for a TV with a VGA port. You will still need to find out what size screen your card supports though. As for the Playstation, it can use any screen with an HDMI, so you can pretty much disreguard what the tool in the shop said.

If you have a PC with an HDMI port and a reasonable graphics card, it shouldn't be too much of a problem, but there might be a limit on the screen size that your graphics card can support, so it may be worth a bit of googling first. If your PC doesn't have an HDMI port, go for a TV with a VGA port. You will still need to find out what size screen your card supports though. As for the Playstation, it can use any screen with an HDMI, so you can pretty much disreguard what the tool in the shop said.

I plan to build a new pc and the graphics card will be very very good. It's going to have HDMI and whatever else that is common on a high spec gaming machine.Limit on the screen size a graphics card can support? The card will support so and so many pixels, aren't all those pixels going to utilize a TV in the same way as they will utilize a monitor?

I have not decided screen size, but I'm guessing at least 24 inches and less than 30 inches. If I sit 1 meter (3 feet) away from it, it can easily become too big.